Web Basics Archives | Instantutils

Data Formats 5 min read

You want to write something for the web — a README file, a blog post, some documentation. Should you write…

Jan van Dijk · Jun 5, 2026

Developer Tools 5 min read

Regular expressions — regex for short — look like someone fell asleep on the keyboard. ^\d{3}-\d{4}$ isn’t exactly inviting. But…

Jan van Dijk · May 18, 2026

ASCII 4 min read

Have you ever copied a link and noticed it was full of strange codes like %20, %3D, or %26? Maybe…

Jan van Dijk · Apr 29, 2026